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Post by mikey cee on Sept 13, 2011 21:21:32 GMT -5
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Post by mikey cee on Sept 13, 2011 21:24:58 GMT -5
Here is a shot of the packing....took me nearly an hour to unwrap it....well it seemed that much anyways. ;D Attachments:
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Post by mikey cee on Sept 13, 2011 21:30:34 GMT -5
Here is one big chunk of glass and a cell to match it. Attachments:
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Post by mikey cee on Sept 13, 2011 21:41:46 GMT -5
This cell measures 11-1/2" o. d. and has a depth of 3-3/4". I know one thing for sure...I'm damn glad I didn't order the 300 F/10. Dang that would have weighed in at 50 pounds easily. Glad I have 3 other amigos eagerly awaiting to help out. Tomorrow morning my friend and machinist John Battleson from Cloudy Nights is coming over to get the measurements to start my countercell. He has a well equiped machine shop and a lathe capable of turning a 12" piece. Too bad most of it will end up on the floor. I'll need new CW's and sliding tube weights for sure. Boy am I glad I overbuilt my mounting for my 8" F/13.3 some 32 years ago. It'll soon be paying dividends I'm sure. Here's the last pic of the lens for now. Later Mike Attachments:
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Post by Mike on Sept 13, 2011 22:51:08 GMT -5
Mike, I'm relieved it got there safely even with the amount of packing I used. Your pictures of the lens do not show how big it is. That's why I stood it up on the kitchen table with the flower behind it. When you get a chance put something in the picture to show scale. I want everyone to see what observatory class glass looks like Mike I told you it was one beautiful piece of glass!
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Post by Watcher3 on Sept 14, 2011 0:01:48 GMT -5
SOOOOOO! It really did have your name on it! Congrats Mikey Cee. Truly a dream scope. I can't wait to see it completed.
Joe
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astrosean
Full Member
Jack and Jill
Posts: 50
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Post by astrosean on Sept 14, 2011 9:18:37 GMT -5
What a lens! That is quite a piece of glass.. Way to go Mike!
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Post by Mike on Sept 14, 2011 12:20:21 GMT -5
The R30 is a higher index material which allows a flatter curve, less CA and a smaller spot size. In effect, the F11 works more like a F14.3. The penalty is a little more weight than a standard achromat. Since weight has nothing to do with the scopes performance, it's a penalty I could live with!
Mike
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Post by Mike on Sept 14, 2011 12:24:20 GMT -5
I gotta get me one of these! Attachments:
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Post by mikey cee on Sept 14, 2011 21:22:55 GMT -5
Here are some pics of it on a scale....30.5 lbs. Attachments:
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Post by mikey cee on Sept 14, 2011 21:27:50 GMT -5
See I told ya'. Imagine carting a scope this size to star parties and trying to attach a standard concrete block to the front end and a like amount of weights to the rear. It ain't a gonna happen. Permanent mounting is an absolute end before even discussing what mount is needed! Attachments:
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Post by mikey cee on Sept 14, 2011 21:32:22 GMT -5
Here is a size comparison with a two liter pop bottle. ;D Had ya' goin' for a minute huh? It's really just a 12 oz. bottle. ;D Attachments:
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Post by Watcher3 on Sept 14, 2011 22:42:34 GMT -5
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Post by mikey cee on Sept 15, 2011 17:10:28 GMT -5
John Battleson just left our home with measurements and has just returned a "rough" drawing of the adapters(black). The existing tube is green. The new tube is red. The lens cell is blue. Attachments:
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Post by Ales - iStar Optical on Sept 16, 2011 7:39:38 GMT -5
Dear Mikey, Thanks for sharing. How do you plan to attach the dew shield? Just curious. Ales
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